Use of the Mathematical Method in the Solution of a Location Problem

Cost minimization criteria are applied to a study of the optimal location of plants for the manufacture of service-industry machines, including street-cleaning equipment, laundry, and dry-cleaning machines. Future national and regional demand for such machines is estimated. The matrix technique is used to identify the economic region for which the aggregate cost of production and transportation of service-industry machines would be minimized. That region is found to be the Volga-Vyatka region, where the estimated cost of producing 315 million rubles worth of service-industry machines is put at 19.5 million rubles. The author does not necessarily exclude the location of manufacturing plants in other regions, if the purpose is to provide employment, as in areas of depleted mineral deposits of the Urals and the Donets Basin or in the agricultural districts of the Southwest and Central Asia.     

BASIC TRENDS IN THE DEVELOPMENT OF THE FOREST INDUSTRY ALONG THE BAYKAL-AMUR MAINLINE

The zone served by the Baykal-Amur Mainline is expected ultimately to contribute roughly one-tenth of the Soviet Union's timber products, which would represent one-fourth to one-third of the freight traffic of the railroad in some segments. Total removals of roundwood are now roughly 15 million m³ in the zone to be served by the BAM, including 11 million in the inner zone (total Soviet roundwood removals now run 380–390 million m³ a year). In the foreseeable future, removals in the BAM zone are expected to reach 30 to 35 million m³, including 20 million in the inner zone. Projections for 10 logging districts suggest that most of the logging activities will be concentrated at the two extremities of the BAM—the Upper Lena district (34% of projected removals) and the Komsomol'sk district (39%). Timber processing complexes will also be concentrated in these two areas.     

The System of Urban Places of the Donets Territorial-Production Complex

The system of urban places of the Donets Basin is analyzed in terms of economic functions. Seven types are distinguished ranging from small, narrowly specialized coal-mining settlements to major cities with a polyfunctional structure of industry. Four charts that accompany the original article have been dropped in the translation because of reproduction problems.     

THE ROLE OF KUZNETSK COALS IN THE FUEL SUPPLY OF ELECTRIC POWER PLANTS IN THE EUROPEAN USSR

Arguments for the expanded use of Kuznetsk coal in electric power generation within the European USSR are presented within the context of the goals of the Energy Program of the USSR and current efforts at overall economic restructuring: fuel substitution as a means of conserving oil and gas resources, replacement of difficult-to-mine and increasingly finite Donets coals by the more abundant, surface-mined Kuznetsk variety, and elimination of an irrational pattern of energy flows generated by the present fuel balance in electric power stations. A three-stage model is described which incorporates a wide variety of alternative assumptions about the fuel mix at power plants for projections of the future role of Kuznetsk coals in the region (translation by Andrew R. Bond).     

高掺粉煤灰水泥的生产和应用

古交地区有矸石煤坑口电厂三座,总装机300万千瓦,年排放粉煤灰400余万吨。生产高掺量粉煤灰水泥是减少粉煤灰污染提高水泥厂效益的有效途径。2010年,我们在山西-煤气化集团水泥粉磨站进行了高掺粉煤灰水泥的试验,生产高掺量粉煤灰水泥5万吨,吃干灰2万吨,试验的成功对全市推广商掺粉煤灰水泥极具示范意义。     

高质量发展视角下黄河流域城市网络的结构演变与影响因素研究

城市作为人口、产业等要素聚集地，基于多要素解构城市网络对明确城市高质量发展的内涵具有重要作用。本文通过修正经典引力模型和社会网络方法，分析了高质量视角下黄河流域城市网络结构演变特征，利用QAP方法探求其影响因素。结果表明：(1)黄河流域城市网络基本形成了以郑州、西安、济南、太原、兰州等省会城市为核心，辐射至周边城市的网络结构，网络密度逐渐增大但整体较低，网络通达度相对较高且稳定。(2)城市网络社群内部关联高于社群间关联，说明高质量发展视角下黄河流域城市网络社群溢出效应主要以社群内溢出为主，社群外溢作用较少。(3)区位条件、交通基础设施、产业结构、政府支持强度、科技创新的差异对黄河流域高质量发展的城市网络演变有显著影响。     

Women beneath the Surface: Coal and the Colonial State in India during the Second World War

In British India in 1943, a rapidly escalating Allied coal crisis resulted in the lifting of a six-year-old ban on women’s employment underground. Over 70,000 low-caste and adivasi (indigenous) women, battling the war-induced Bengal Famine, sustained production levels and prevented the monthly loss of 385,000 tons of coal between August 1943 and February 1946. Their employment sparked unprecedented outrage among the public, in the press, and in parliaments, generating a transnational discourse on Indian women workers for the very first time. Meanwhile the desperate colonial government disciplined miners through the threat of starvation, information that has so far remained concealed.     

THE CHRONOSTRATIGRAPHY AND GEOARCHAEOLOGICAL SIGNIFICANCE OF AN ALLUVIAL GEOARCHIVE: COMPARATIVE OSL AND AMS 14C DATING FROM GREECE*

The Basin of Phlious in southern Greece is known for its thick colluvial and alluvial deposits from the Holocene. It offers a good opportunity to reconstruct the history of Holocene soil erosion and its interaction with historical farming activities. In this study, we present new results based on optically stimulated luminescence (OSL) dating from the Basin of Phlious. The comparison between OSL and ¹⁴C AMS ages shows good agreement, and demonstrates the need for the detection of insufficiently bleached OSL samples in order to obtain accurate results. The discovery of a Neolithic site, buried under thick alluvial deposits, confirms the hitherto postulated Neolithic human impact on the landscape.     

Miliacin in palaeosols from an Early Iron Age in Ukraine reveal in situ cultivation of broomcorn millet

During the archaeobotanical investigation of Scythian–Sarmatian period (Early Iron Age), pits with crop processing waste, discovered in the floodplain of Donets River, eastern Ukraine, and charred remains of cereal grains, dominated by broomcorn millet, were recorded. The grains from the pits were radiocarbon dated to the fifth to first century BC. Those pits are distant from any known contemporaneous settlement. The apparent disconnection of these pits from any local settlement suggests that (1) millet was brought from other locations by mobile groups, or (2) millet was cultivated locally by populations whose settlements have left no discernible archaeological trace. The analysis of molecular biomarkers preserved in palaeosols that are stratigraphically connected to the pits revealed high levels of miliacin, a molecule that can be preserved in ancient soils and sediments, and that is consistent with broomcorn millet (Panicum miliaceum). High levels in miliacin in soils stratigraphically connected to the pits are interpreted as the result of a large biomass of P. miliaceum produced at time of soil formation. Our biogeochemical results applied to a palaeosol thus attest to the in situ cultivation of crops dominated by the broomcorn millet during the early Iron Age in the floodplain of Donets River. Biochemical examination of soils and palaeosols can thus provide useful information on past dynamics of land-use by ancient population, especially when settlements or macrobotanical remains are absent.     

Migration of metamorphic CO2 into a coal seam: a natural analog study to assess the long‐term fate of CO2 in Coal Bed Carbon Capture,Utilization, and Storage Projects

This study assesses the displacement of coalbed methane by CO₂ migration along a fault into the coal seam in the Yaojie coalfield. Coal and gas samples were collected continuously at various distances in NO.2 coal seam from F19 fault. Vitrinite reflectance, maceral, and pore distributions and proximate analysis of fourteen coal samples were performed. Gas components, concentrations, carbon isotopes of 28 gas samples were determined. We examined the coal–gas trace characteristics of coalbed methane displaced away from the fault by CO₂ injection after geological ages. From east to west, away from the F19 fault, the CO₂ concentration decreased, whereas the CH₄ concentration increased gradually. The δ¹³C values for CO₂ varied between ?9.94‰ and 1.12‰, suggesting a metamorphic origin. A wider range of values (from ?9.94‰ to 20‰) was associated with the mixing of microbial carbon dioxide, isotopic fractionation during CO₂ migration through the microporous structures of coals, and/or carbon isotope fractionation during gas–water exchange and dissolution of CO₂. Away from the F19 fault, the volumes of micropores, mesopores and macropores decrease gradually. The Dubinin–Radushkevich (DR) micropore volume decreased from 0.0059 to 0.0037 cm³ g^‐1, and the mesopore and macropore volumes decreased from 0.066 to 0.026 cm³ g^‐1. The CO₂ injection can mobilize aromatic hydrocarbons and mineral matter from coal matrix, resulting in the decrease in the absorption peak intensity for coal samples after supercritical CO₂ treatment, which indicates that chemical reactions occur between coal and CO₂, not only physical adsorption.     

THE SHELBY FOREST SITE IN SOUTHWEST TENNESSEE AND EARLY MISSISSIPPIAN RED-FILMED POTTERY IN THE CENTRAL MISSISSIPPI VALLEY

Abstract

The Shelby Forest site in southwest Tennessee is an Early Mississippian component characterized by Varney Red Filmed ceramics. Comparison to other sites in the Reelfoot Lake area of west Tennessee and the Upper St. Francis Basin of Missouri and Arkansas allows refinement of the direction, timing, and characteristics of influences from these areas northeastward to American Bottom and southward into the Yazoo Basin of Mississippi. Subsequent influences from the Cahokia area into the southern Yazoo Basin and northeast Louisiana are also discussed.     

The Selby Project Britain's Greatest Coal Mine

Abstract

In the 260 square kilometres between York and Selby, under the rich agricultural land of the Plain of York, the British National Coal Board is creating one of tbe world's greatest single deep mining undertakings. Designed to produce 10 million tonnes of coal a year at very high efficiency, the scheme is well advanced to reach full production in 1987. In addition to utilizing all the latest mining technology, the design, which handles all the output at one disposal point, has involved the development of much greater capacity coal-handling techniques and equipment than that previously used in the deep coal mining industry.     

From Nihewan to Zhoukoudian: Cultural Evolution Pattern in the Paleolithic Age of Northern China

Nihewan and Zhoukoudian are important areas where early humans and cultures originated and reproduced in northern China and even East Asia. Geologically, both site groups belong to the Haihe River valley; chronologically, the Nihewan sites date to ca. 1.7 million years ago, and the Zhoukoudian sites date to ca. 0.5 million years ago; and culturally, both are dominated by the small-flake-tool culture. Thus, it is speculated that the early culture in the Zhoukoudian sites came from the migrants from the Nihewan Basin who facilitated cultural diffusion in the area; in turn, it also affected the culture in the Nihewan area during the subsequent development. This paper proposes the development path of the Paleolithic culture in northern China, that is, early humans in this region roughly experienced three stages of subsistence from lake-dependent to cave-dependent and then to river-dependent.     

THE ORCE BASIN (ANDALUCÍA, SPAIN) AND THE INITIAL PALAEOLITHIC OF EUROPE

Recent excavations in southern Spain have led to claims that humans were present in this part of Europe much earlier than had been generally believed — perhaps as early as 1.8–1.4 million years ago. The evidence from the Orce basin is summarized and discussed. Initial work at a newly discovered site, Fuentenueva 3a, indicates a good chance that genuine artefacts may indeed be present in early Pleistocene levels. Further excavation at this site can be expected to settle the matter in due course.     

尼罗河流域文明与地理环境变迁研究

本文根据对尼罗河流域文明区地理环境变迁研究的结果,认为正是由于距今9000-4000年前亚非季风势力增强、季风雨量增加给尼罗河流域带来的湿润气候,为文明的形成和初步发展创造了优越的地理环境。因而尼罗河流域文明不仅仅是"尼罗河的赠礼",而应当更准确地说它是"季风雨的赠礼"。也正是由于季风雨的多寡在很大程度上制约着文明的盛衰,因此,由于从距今4000年前后开始的季风势力衰退和季风雨量锐减而导致的干旱化、沙漠化,则逐步吞噬了这一古老的文明。     

基于煤炭调运途径优化的江苏省煤炭物流基地建设

江苏省煤炭资源供需呈生产量小、消费量大,对外依存度不断加大的态势,并且在煤炭调运中省内"北煤南运"运量大、运距长,省外煤炭供应基地较远,大多数铁路线运力已饱和,运输方式、流向单一等一系列问题突出。通过对江苏省煤炭供需和调运中存在问题的分析,提出其煤炭调运途径优化的总体思路是,充分利用国家北煤南运的"海上通道"减轻铁路运输压力,发挥江苏临海沿江的港口优势降低运输成本,建设煤炭物流基地优化调运格局,论文最后论述了建设四大煤炭物流基地的构想:1、以连云港、徐州港为中心的北部煤炭物流基地;2、以盐城港为中心的沿海煤炭物流基地;3、以南通港为中心的"海进江"煤炭物流基地;4、以南京港为中心的沿江煤炭物流基地。     

Isotope sourcing of prehistoric willow and tule textiles recovered from western Great Basin rock shelters and caves – proof of concept

Isotope and trace-metal analyses were used to determine the origin of plants used to manufacture prehistoric textiles (basketry and matting) from archaeological sites in the western Great Basin. Research focused on strontium (⁸⁷Sr/⁸⁶Sr) and oxygen (¹⁸O/¹⁶O) isotope ratios of willow (Salix sp.) and tule (Schoenoplectus sp.), the dominant raw materials in Great Basin textiles. The oxygen-isotope data indicated that the willow and tule used to produce the textiles were harvested from the banks of rivers or in marshes characterized by flowing water and not from lakes or sinks. The strontium-isotope data were useful in showing which plants came from the Humboldt River and which came from rivers headed in the Sierra Nevada.     

COAL AND CREMATION AT THE TSCHUDI BURN,CHAN CHAN,NORTHERN PERU*

Analyses of a 20–30 cm thick, completely combusted ash at the 25 × 70 m Tschudi burn at Chan Chan, northern Perú, contain 52–55 wt% SiO₂, 180–210 ppm zirconium and are consistent with coal ash. Soil geochemistry across the burn showed elevated calcium and phosphorus content, possible evidence for reported human cremation. A calcined, 5 g, 4.5 cm skull fragment recovered from the burn was confirmed as human by protein radioimmunoassay (pRIA). X‐ray diffraction showed that the bone had been heated to 520°C. The burn took place c. ad 1312–1438 based on interpretation of a ¹⁴C date on carbonized plant tinder.     

降温事件:4.3kaBP岱海老虎山文化中断的可能原因

4.3kaBP老虎山文化的突然中断标志内蒙古岱海地区原始农业文化阶段的结束。本文分析发现,其时间与使全新世大暖期结束的寒冷事件相吻合,此次较现今低3℃的降温所造成的热量条件不足是老虎山文化中断的原因。     

蒙东地区与东北三省煤炭资源开发的区域合作研究

我国蒙东地区与东北三省煤炭资源开发的区域合作是建设新兴的蒙东资源基地和振兴东北老工业基地的必然要求。通过在蒙东地区及东北三省的深入调查,发现这两大区域煤炭资源开发的区域合作已经形成一些典型案例,可以分别从上级政府强势干预、地方政府积极推动、中央、地方、企业联动、企业自发参与这四种模式来认识这些案例所反映的区域合作特征、效应与问题。为深入推进蒙东与东北三省煤炭资源开发的区域合作,政府干预应着重协调区域合作的地区格局,促进企业的多元参与,建设跨地区运输通道与生态工程,推进地方政府间的配合与协调。